From the looks of it, number Four's body was exuding fire-type spiritual power. From his cultivation, he had yet to break through to the middle level of the soul splitting stage.
When the seal Xiu entered the trial, they were also in the soul splitting stage.
However, what made everyone's heart tighten was the fact that song qingxiao's cultivation had advanced!
The divine incarcerate had its own set of established laws, and the distance between each of them would not differ by much. At most, they would be within the same realm.
In other words, when song qingxiao entered the divine prison with the talisman cultivators, she was at most at the early-stage Dao integration realm.
According to her true strength, she shouldn't be too far away from someone at the peak of the soul splitting stage.
But now, not many years had passed, and she had already broken through to the void realm. Those who had once participated in the same trial as her were now far behind her.